Tan-y-marian is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 9 March 2000. House.

Tan-y-marian

WRENN ID
pitched-bracket-dust
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
9 March 2000
Type
House
Address
Tan-y-marian, Tal-Y-Bont, Bangor, Llanllechid
OS grid reference
SH 615 700
Coordinates
53.20947, -4.07404
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Tan-y-marian is a 2-storey building with a rectangular plan and a symmetrical 3-bay façade, constructed of roughcast rubblestone and slate-hung on the left side. It features a hipped slate roof with a short ridge. The front has 12-paned sash windows, with the ground floor windows having segmental heads, all equipped with slate cills. The central entrance consists of a 6-panel door, which is divided into two sections, located beneath a flat-roofed timber porch that has latticed work on the sides. There are prominent rectangular chimney stacks on the roof slope to both the left and right.

Inside, there is a large central hall that includes the original staircase, which has stick balusters, an open string, a turned and radiating bottom newel, and a moulded handrail. The interior also features 6-panel doors and panelled window shutters. At each end wall, there are 2-storey lean-tos, with the one on the right being larger and containing 16-paned horizontal sliding sash windows on each floor.

Local climate

Tan-y-marian sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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